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Inventory	12 Months Ended
	Dec. 31, 2018
Inventory, Net [Abstract]
Inventory	InventoryInventories consisted of $5.5 million and $20.9 million of refined petroleum products as of December 31, 2018 and 2017, respectively. Inventory is stated at the lower of cost or net realizable value, with cost determined on a FIFO basis. We recognize lower of cost or net realizable value charges as a component of cost of materials and other in the consolidated statements of income and comprehensive income, which amounted to $0.2 million and a nominal amount during the years ended December 31, 2018 and 2017, respectively. There was no lower of cost or net realizable value charge during the year ended December 31, 2016.

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- Definition

The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 330
-URI http://asc.fasb.org/topic&trid=2126998

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- References

No definition available.

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